The Open Materials Science Journal最新文献_第9页

Synergistic Inhibition Effect Between Capsella bursa-pastoris Extracts and Iodide Ions for Q235 Mild Steel in 1 M HCl Solution 1 M HCl溶液中荠菜提取物与碘离子对Q235低碳钢的协同抑制作用

The Open Materials Science Journal Pub Date : 2014-06-27 DOI: 10.2174/1874088X01408010031

Qin Hu, Y. Qiu, Guoan Zhang, Xingpeng Guo

引用次数: 0

High Temperature Corrosion Resistance of Pt-Based Superalloys in 0.2% SO2 -N2 Gas pt基高温合金在0.2% SO2 -N2气体中的耐高温腐蚀性能

The Open Materials Science Journal Pub Date : 2014-06-27 DOI: 10.2174/1874088X01408010018

J. H. Potgieter, N. Maledi

{"title":"High Temperature Corrosion Resistance of Pt-Based Superalloys in 0.2% SO2 -N2 Gas","authors":"J. H. Potgieter, N. Maledi","doi":"10.2174/1874088X01408010018","DOIUrl":"https://doi.org/10.2174/1874088X01408010018","url":null,"abstract":"Pt-based superalloys are a new generation of materials intended to be used in various high temperature applications. Effluent gases emitted to the environment during combustion operations can lead to degradation of high temperature materials with deleterious effects on mechanical integrity and the corrosion of alloys. This paper focuses on sulphidation of one quaternary, and four ternary, Pt-based superalloys of various chemical compositions. Pt-based superalloys were exposed at 900°C in a reducing environment. The alloys were compared to coated and uncoated Ni-based superalloys (NBSAs). X-Ray diffraction (XRD), Scanning electron microscopy (SEM) and Raman spectroscopy were used to characterize corrosion products that formed. The Pt-based superalloys exhibited higher corrosion resistance than NBSAs as a result of the formation of a protective Al2O3 scale, whereas NBSAs suffered internal sulphidation and formed Cr and Ni sulphide corrosion compounds. The formation of brittle needle-like phases and the transformation of the NiAl phase to Ni3Al, led to early failure of the coated alloy. Pt-based superalloys alloyed with Co showed poor corrosion resistance as a result of depletion of alloying elements.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"62 1","pages":"18-26"},"PeriodicalIF":0.0,"publicationDate":"2014-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76095876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enhancing the Properties of Ti6Al4V as a Biomedical Material: A Review Ti6Al4V生物医用材料性能增强研究进展

The Open Materials Science Journal Pub Date : 2014-05-16 DOI: 10.2174/1874088X01408010001

V. Annamalai, S. Kavitha, S. Ramji

引用次数: 14

Characteristics and Preparation of PVDF Catalytic Membrane Modified by Nano-TiO2/Fe3+ 纳米tio2 /Fe3+修饰PVDF催化膜的特性及制备

The Open Materials Science Journal Pub Date : 2013-11-15 DOI: 10.2174/1874088X01307010039

X. Lijun, Zhangdi Li, Li Li, Chi Jingyuan, Lu Junchi, T. Ye, Z. Yingjie

{"title":"Characteristics and Preparation of PVDF Catalytic Membrane Modified by Nano-TiO2/Fe3+","authors":"X. Lijun, Zhangdi Li, Li Li, Chi Jingyuan, Lu Junchi, T. Ye, Z. Yingjie","doi":"10.2174/1874088X01307010039","DOIUrl":"https://doi.org/10.2174/1874088X01307010039","url":null,"abstract":"The polyvinylidene fluoride (PVDF)/Fe 3+ -TiO2 catalytic membrane was prepared by sol-gel method. It was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), FT-IR spectrum (FT-IR), mechanics capability, water flux, pepsin retention, porosity and contact angle etc. The catalytic activity of PVDF/Fe 3+ -TiO2 catalytic membrane was evaluated by the degradation of refractory dye Orange IV in the presence of H2O2. The results show that the addition of appropriate nano-sized TiO2 sol in the preparation of PVDF membrane has greatly improved some properties of the membrane such as microstructure, hydrophilic ability, mechanics intensity and water flux etc. The addition of Fe 3+ ion in the preparation of PVDF membrane has greatly improved its catalytic activity to decompose H2O2. The catalytic activity of PVDF/Fe 3+ -TiO2 is increased with the increase of the content of Fe 3+ ion. When the content of Fe 3+ _TiO2 sol is 21%, the content of Fe 3+ ion is from 0.02% to 0.12%, the discolorization rate of Orange IV in this Fenton-like oxidation is from 61.2% to 90.5%. The catalytic activity of PVDF/Fe 3+ -TiO2 is not changed with the increase of the content of nano-sized TiO2. This kind of PVDF/Fe 3+ -TiO2catalytic membrane has not only good filtration efficiency but also good catalytic activity to effectively decompose H2O2.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"430 1","pages":"39-43"},"PeriodicalIF":0.0,"publicationDate":"2013-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91478488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Influence of Homogenization on Mechanical Properties of Al-1Mn-1Mg Alloy Prepared by Different Melt-Treatments 均匀化对不同熔融处理Al-1Mn-1Mg合金力学性能的影响

The Open Materials Science Journal Pub Date : 2013-10-31 DOI: 10.2174/1874088X01307010033

Y. Chen, L. Hong, Lian-zheng Wang, Wenzhe Chen

{"title":"Influence of Homogenization on Mechanical Properties of Al-1Mn-1Mg Alloy Prepared by Different Melt-Treatments","authors":"Y. Chen, L. Hong, Lian-zheng Wang, Wenzhe Chen","doi":"10.2174/1874088X01307010033","DOIUrl":"https://doi.org/10.2174/1874088X01307010033","url":null,"abstract":"Influence of homogenization on mechanical properties of Al-1Mn-1Mg alloy prepared by different melt- treatments was discussed and mechanism of metallurgical defects on ingots' mechanical properties was analyzed. It was found that metallurgical defects, such as the inclusions and gas holes, cannot be removed from the original ingots by homogenization; the average increasement of tensile strength of the ingots prepared by comprehensive melt-treatment and homogenized at 400~500°C for 12 hours was 17.4%, and the elongation improved slightly; the better obdurability of the ingots can be obtained due to the vast reduction of crack initiation of metallurgical defects such as the inclusions, gas holes and so on; the fracture mode gave priority to the type of transcrystalline and micropore gathering; under the experiment condition, the relatively optimized processing permanents of homogenization can be obtained by heating at 450~500°C while holding for 12 hours and air cooling; the comprehensive mechanical properties of the ingots, prepared by the optimized process, can be tested as follows: � b� 180~193MPa, �� 16.0~18.0%.. Content 0.7~1.2 0.8~1.3 0.4~0.5 0.2~0.25 0.15~0.25 0.03~0.05 Bal.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"22 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"2013-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74198975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Synthesis, Characterization of p-CuSCN/n-Si Heterojunction p-CuSCN/n-Si异质结的合成与表征研究

The Open Materials Science Journal Pub Date : 2013-10-31 DOI: 10.2174/1874088X01307010029

Xiongyu Chao, Chen Lei, H. Yuan

引用次数: 4

Mechanics of Soft PSAs (Pressure Sensitive Adhesives) 软性压敏胶的力学研究

The Open Materials Science Journal Pub Date : 2013-10-18 DOI: 10.2174/1874088X01307010023

G. Lamanna, A. Basile

引用次数: 5

Impact Damage Management of Composite Laminated Structures by a Probabilistic Approach 基于概率方法的复合材料层合结构冲击损伤管理

The Open Materials Science Journal Pub Date : 2013-05-30 DOI: 10.2174/1874088X01307010008

A. Riccio, Teresa Russo, F. Scaramuzzino

{"title":"Impact Damage Management of Composite Laminated Structures by a Probabilistic Approach","authors":"A. Riccio, Teresa Russo, F. Scaramuzzino","doi":"10.2174/1874088X01307010008","DOIUrl":"https://doi.org/10.2174/1874088X01307010008","url":null,"abstract":"A numerical procedure for the design of impact damage resistant composite laminated structures is proposed in the present paper. This procedure, based on probabilistic analyses, is able to support the design of complex composite laminated structures by accounting for the scatter in composite materials' mechanical properties (related to the mutable environmental conditions experienced by an aircraft component during its service life) and by accounting for the uncertainty on accidental impacts locations. A failure criterion, based on the determination of the threshold critical impact energy for impact induced delaminations' onset, is adopted for the evaluation of the damage resistance of composite laminated structures, in the frame of the introduced probabilistic analyses. The proposed procedure has been implemented into a commercial FEM platform and composite panels have been used as numerical benchmarks to investigate the influence of the combined material properties and impact location uncertainties on composite laminated structures' impact damage resistance. A further comparison between two different stiffened composite panels designs have been introduced to highlight the added value of the proposed impact damage resistance probabilistic approach in terms of safety and effectiveness, with respect to the standard deterministic tools.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"153 1","pages":"8-22"},"PeriodicalIF":0.0,"publicationDate":"2013-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75110445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Arc Spraying 3Cr13 Molten Drop Impact Stress Numerical Analysis 电弧喷涂3Cr13熔滴冲击应力数值分析

The Open Materials Science Journal Pub Date : 2013-03-08 DOI: 10.2174/1874088X01307010001

Changhe Li, Sheng Wang, T. Zhao, Yucheng Ding

{"title":"Arc Spraying 3Cr13 Molten Drop Impact Stress Numerical Analysis","authors":"Changhe Li, Sheng Wang, T. Zhao, Yucheng Ding","doi":"10.2174/1874088X01307010001","DOIUrl":"https://doi.org/10.2174/1874088X01307010001","url":null,"abstract":"In the thermal spraying process, the process for the molten metal particles to hit against matrix to form coating experiences great change temperature. Since the coating materials has different thermal physical properties with the matrix materials, the residual stress is surely left in the coating. Much bigger residual stress not only restricts coating thickness but also primarily affects coating binding strength. Having analyzed reason for residual stress in the thermal spraying coating and matrix, the theoretical model of arc spraying 3Cr13 molten drop impact stress is built and numerical simulation is done for this theoretical model. The result indicates that: the faster the molten drop speed is, the greater the pressure that matrix produces. When the molten drop's collision speed is 100m/s, it is not obvious for the matrix's pressure stress and when the collision speed is increased to 200m/s, the pressure stress produced in the matrix can maximize 5500Mpa; the faster the molten drop's collision speed is, the higher extent the molten drop's flattening is, which is more beneficial to increase coating's bonding strength. The radius for the molten drop in the radius of 35� m becomes 80~110� m after collision and the flat ratio of the molten drop particle is about 3. The theoretical analysis is consistent with the experiment result.","PeriodicalId":22791,"journal":{"name":"The Open Materials Science Journal","volume":"15 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87768607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling the Strength Degradation and Fatigue of Carbon Fiber Rein-forced Composites 碳纤维增强复合材料强度退化与疲劳模型研究

The Open Materials Science Journal Pub Date : 2012-11-16 DOI: 10.2174/1874088X01206010077

Pasquale Verde

引用次数: 3